I have set in the slider volume of GSX all down....but the helicopter and other effect sound of GSX is always high
There's no helicopter sound anywhere in GSX, that's why you don't see any difference, it must be a sound coming from FSX.
I can put down this gsx sound??
With the GSX sound slider which, of course, is in the SOUND settings page.
The other sound setting, the one in the "User Interface" section, as the name says, is JUST the sound of the GSX user interface sounds. Some users were annoyed by the "beep" when GSX is asking to open a door, or the "dong" when you forget to set parking brakes, the "User Interface" sound slider controls THOSE sounds only.